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Sida intricata F.Muell.
Tangled Sida

Trans.Philos.Soc.Victoria 1:19 (1854)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status

Erect or spreading shrub, 0.13-0.3 m high. Fl. yellow, Feb or Aug to Sep. Clay, clayey sand.

Grazyna Paczkowska, Descriptive Catalogue, 24 September 1996

Scientific Description

Herb or shrub, with glabrous stems. Leaves 5-17 mm long, 2-7 mm wide, not lobed; margins crenate; hairy, with stellate hairswith scales absent, Sessile glands absent; stipules present and persistent to older leaves. Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 2.5-5 mm long; indumentum present, with absent, with stellate hairs present, with gland tipped hairs absent, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) absent. Calyx green, 2-2.4 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) absent, stellate hairs present, tubercle-based simple hairs absent, gland-tipped hairs absent, scales absent, Terminal appendages absent, number of ribs absent. Corolla yellow, 3-3.2 mm long, glabrous. Indumentum (outside) Sessile glands absent. Stamens many, united and arising from a staminal tube around the style; filaments present, 0.4-0.5 mm long; anthers 0.2-0.3 mm long, indumentum absent (anthers glabrous). Staminodes absent, appendages absent. Ovary hairs and scales absent (ovary quite glabrous); style 1, 1.8-3.2 mm long, with four or numerous style branches or lobes, mostly glabrous, wing absent. Flowering time February, August or September. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Gibson Desert, Central Ranges, Yalgoo, Murchison, Great Victorian Desert, Coolgardie and Nullarbor.

C. Hollister and K.R. Thiele, 11 August 2023


IBRA Regions
Carnarvon, Central Ranges, Coolgardie, Gascoyne, Gibson Desert, Great Victoria Desert, Murchison, Nullarbor, Pilbara, Yalgoo.
IBRA Subregions
Carlisle, Carnegie, Central, Eastern Goldfield, Eastern Murchison, Lateritic Plain, Mann-Musgrave Block, Maralinga, Mardabilla, Nullarbor Plain, Roebourne, Shield, Tallering, Western Murchison, Wooramel.
IMCRA Regions
Local Government Areas (LGAs)
Ashburton, Broome, Coolgardie, Esperance, Kalgoorlie-Boulder, Laverton, Leonora, Meekatharra, Menzies, Ngaanyatjarraku, Upper Gascoyne, Wiluna, Yalgoo.